Research technician Jamie Nemecek helps Boris Castro of Fresno, center, and Walter Goerzen of Greenleaf Farms, Dinuba, Calif., in identifying citricola scale on leaves collected from research plots at the Lindcove Research and Extension Center in Exeter, Calif.

A larger-than-expected crowd showed up at the Lindcove Research and Extension Center in Exeter, Calif., to hear University of California citrus IPM specialist and research entomologist Beth Grafton-Cardwell not only talk about citricola scale, but show growers, PCAs and others what to look for in scouting for the citrus pest.